.TH std::iswgraph 3 "2024.06.10" "http://cppreference.com" "C++ Standard Libary"
.SH NAME
std::iswgraph \- std::iswgraph

.SH Synopsis
   Defined in header <cwctype>
   int iswgraph( std::wint_t ch );

   Checks if the given wide character has a graphical representation, i.e. it is either
   a number (0123456789), an uppercase letter (ABCDEFGHIJKLMNOPQRSTUVWXYZ), a lowercase
   letter (abcdefghijklmnopqrstuvwxyz), a punctuation character
   (!"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~) or any graphical character specific to the
   current C locale.

   If the value of ch is neither representable as a wchar_t nor equal to the value of
   the macro WEOF, the behavior is undefined.

.SH Parameters

   ch - wide character

.SH Return value

   Non-zero value if the wide character has a graphical representation character, zero
   otherwise.

.SH Notes

   ISO 30112 specifies which Unicode characters are include in POSIX graph category.

.SH Example


// Run this code

 #include <clocale>
 #include <cwctype>
 #include <iostream>

 int main()
 {
     wchar_t c = L'\\u2602'; // the Unicode character Umbrella ('☂')

     std::cout << std::hex << std::showbase << std::boolalpha
               << "in the default locale, iswgraph("
               << static_cast<std::wint_t>(c) << ") = "
               << static_cast<bool>(std::iswgraph(c)) << '\\n';

     std::setlocale(LC_ALL, "en_US.utf8");
     std::cout << "in Unicode locale, iswgraph("
               << static_cast<std::wint_t>(c) << ") = "
               << static_cast<bool>(std::iswgraph(c)) << '\\n';
 }

.SH Output:

 in the default locale, iswgraph(0x2602) = false
 in Unicode locale, iswgraph(0x2602) = true

.SH See also

   isgraph(std::locale) checks if a character is classified as graphical by a locale
                        \fI(function template)\fP
   isgraph              checks if a character is a graphical character
                        \fI(function)\fP
   C documentation for
   iswgraph

        ASCII values            characters    iscntrl  isprint  isspace  isblank  isgraph  ispunct  isalnum  isalpha  isupper  islower  isdigit  isxdigit
decimal hexadecimal   octal                   iswcntrl iswprint iswspace iswblank iswgraph iswpunct iswalnum iswalpha iswupper iswlower iswdigit iswxdigit
0–8     \\x0–\\x8     \\0–\\10    control codes   ≠0       0        0        0        0        0        0        0        0        0        0        0
                              (NUL, etc.)
9       \\x9         \\11       tab (\\t)        ≠0       0        ≠0       ≠0       0        0        0        0        0        0        0        0
                              whitespaces
10–13   \\xA–\\xD     \\12–\\15   (\\n, \\v, \\f,    ≠0       0        ≠0       0        0        0        0        0        0        0        0        0
                              \\r)
14–31   \\xE–\\x1F    \\16–\\37   control codes   ≠0       0        0        0        0        0        0        0        0        0        0        0
32      \\x20        \\40       space           0        ≠0       ≠0       ≠0       0        0        0        0        0        0        0        0
33–47   \\x21–\\x2F   \\41–\\57   !"#$%&'()*+,-./ 0        ≠0       0        0        ≠0       ≠0       0        0        0        0        0        0
48–57   \\x30–\\x39   \\60–\\71   0123456789      0        ≠0       0        0        ≠0       0        ≠0       0        0        0        ≠0       ≠0
58–64   \\x3A–\\x40   \\72–\\100  :;<=>?@         0        ≠0       0        0        ≠0       ≠0       0        0        0        0        0        0
65–70   \\x41–\\x46   \\101–\\106 ABCDEF          0        ≠0       0        0        ≠0       0        ≠0       ≠0       ≠0       0        0        ≠0
71–90   \\x47–\\x5A   \\107–\\132 GHIJKLMNOP      0        ≠0       0        0        ≠0       0        ≠0       ≠0       ≠0       0        0        0
                              QRSTUVWXYZ
91–96   \\x5B–\\x60   \\133–\\140 [\\]^_`          0        ≠0       0        0        ≠0       ≠0       0        0        0        0        0        0
97–102  \\x61–\\x66   \\141–\\146 abcdef          0        ≠0       0        0        ≠0       0        ≠0       ≠0       0        ≠0       0        ≠0
103–122 \\x67–\\x7A   \\147–\\172 ghijklmnop      0        ≠0       0        0        ≠0       0        ≠0       ≠0       0        ≠0       0        0
                              qrstuvwxyz
123–126 \\x7B–\\x7E   \\172–\\176 {|}~            0        ≠0       0        0        ≠0       ≠0       0        0        0        0        0        0
127     \\x7F        \\177      backspace       ≠0       0        0        0        0        0        0        0        0        0        0        0
                              character (DEL)
